Police are requesting the public’s help in identifying the suspect who robbed a St. Anne’s Credit Union branch at gunpoint this week.

The suspect wore dark clothing, a bean cap, sunglasses and a blue scarf over his face, according to surveillance photos released Thursday by Fall River Police.

Witnesses also described the suspect as a heavy-set black man, approximately six feet four inches tall. He apparently rode a red bicycle to the scene and was spotted leaving the area in a gray Maxima, police said.

The suspect entered the bank branch, 286 Oliver St., just before 11:30 a.m. Monday. He brandished the firearm at a teller and demanded cash. The teller handed an undisclosed amount of money to the suspect, who then fled the bank on foot, police said.

Anyone with information is asked to contact Detective Larry Ferreira in the Fall River Police Department Major Crimes Division at 508-676-8511, or to call the anonymous tip line at 508-672-8477.